1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Which is not true statement?
A
$$\alpha $$-carbon of $$\alpha $$-amino acid is asymmetric.
B
All proteins are found in $$L$$-form
C
Human body can synthesise all proteins they need.
D
At pH = 7 both amino and carboxylic groups exist in ionised form.
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In electrolysis of NaCl when Pt electrode is taken then H2 is liberated at cathode while with Hg cathode it forms sodium amalgam
A
Hg is more inert than Pt
B
More voltage is required to reduce H+ at Hg than at Pt
C
Na is dissolved in Hg while it does not dissolve in Pt
D
Conc. of H+ ions is larger when Pt electrode is taken.
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
A solution containing components A and B folloes Raoult's law
A
A - B attraction force is greater than A - A and B - B
B
A - B attraction force is less than A - A and B - B
C
A - B attraction force remains same as A - A and B - B
D
volume of solution is different from sum of volume of solute and solvent.
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
2A $$ \to $$ B + C

It would be a zero order reaction when
A
the rate of reaction is proportional to square of concentration of A
B
The rate of reaction remains same at any concentration of A
C
the rate remains unchanged at any concentration of B and C
D
the rate of reaction doubles if concentrations of B is increased to double.